未来桂林15天天气预报:帮忙去污

来源:百度文库 编辑:杭州交通信息网 时间:2024/04/29 05:04:02
我的床用了五六年了,质量很好,就是床头有些皮革装饰是乳白色的(用于靠背的),时间长了泛黄,还有些污渍,请问如何去污,让它焕然一新?先谢过了。
能不能说中文呀?

In this experiment, with the presence of detergents such as EDTA and SDS, proteinase K and RNA enzymes were used sequentially to digest the cells. That was followed by extration using a mixture of phenol, chloroform, iso-pentanol (25:24:1). The abtained DNA solution, which was purified by means of dialysis, was concentrated by use of cane sugar. Finally, it was detected and measured by gel electrophoresis. The results showed that DNA genomes with high purity can be extracted from a single tick.